* {
  margin: 0;
  padding: 0;
  text-decoration: none;
}
body {
  background-color: #ccc;
}
ul {
  list-style: none;
}
.w {
  width: 1200px;
  margin: 0 auto;
}
a {
  color:#666;
}
a:hover{
  color:red;
}
.slide {
  position: relative;
}
/* 左侧 */
.left {
  width: 200px;
  background:#fff;
  position: absolute;
}
.left li{
  padding-left:20px;
  line-height: 30px;
  font-size: 14px;
  cursor: pointer;
}
.left ul li.active{
  background:rgba(153, 153, 153, 0.657)
}
/* 右侧 */
.right{
  position: absolute;
  left:200px;
}
.right .item{
  display: none;
  border-left: 1px solid #eee;
}
